Cardinals rookie running back Chase Edmonds shakes the hand of team president Michael Bidwill after signing his contract.

Quarterback Josh Rosen signed his rookie contract with the Cardinals on Thursday, and three other draft picks weren't far behind.

Fourth-rounder Chase Edmonds, sixth-rounder Chris Campbell and seventh-rounder Korey Cunningham all inked their four-year deals on Friday following the first practice of rookie minicamp. They are now officially in the fold and will aim to start making inroads in the quest to make the 53-man roster and become contributors.

Edmonds said his goal is to be the best rookie in the draft class.

"Hopefully Josh doesn't hear this," Edmonds said with a smile.

All of the rookies saw the field for the first time earlier in the day. Campbell made the most of his opportunity, nabbing an interception in a 1-on-1 drill. Edmonds had a nice run up the right sideline and showed explosiveness. Cunningham played left tackle and was thrilled to throw on an NFL jersey for the first time.

"I'm living the dream I dreamed as a little kid," Cunningham said. "It's all about taking advantage of it now."

The only rookies who are yet to sign are second-round pick Christian Kirk and third-rounder Mason Cole.